EP0826956A3 - Detector arrangement for a spectroscopic analyser - Google Patents

Detector arrangement for a spectroscopic analyser Download PDF

Info

Publication number
EP0826956A3
EP0826956A3 EP97660089A EP97660089A EP0826956A3 EP 0826956 A3 EP0826956 A3 EP 0826956A3 EP 97660089 A EP97660089 A EP 97660089A EP 97660089 A EP97660089 A EP 97660089A EP 0826956 A3 EP0826956 A3 EP 0826956A3
Authority
EP
European Patent Office
Prior art keywords
window
length
sample chamber
radiation
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97660089A
Other languages
German (de)
French (fr)
Other versions
EP0826956B1 (en
EP0826956A2 (en
Inventor
Kai Karlsson
Kurt Peter Weckström
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GE Healthcare Finland Oy
Original Assignee
Instrumentarium Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Instrumentarium Oyj filed Critical Instrumentarium Oyj
Publication of EP0826956A2 publication Critical patent/EP0826956A2/en
Publication of EP0826956A3 publication Critical patent/EP0826956A3/en
Application granted granted Critical
Publication of EP0826956B1 publication Critical patent/EP0826956B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention relates to an additional feature for use in a measuring sensor which is used for analyzing mediums spectroscopically. The measuring sensor comprises: a radiation source (1), emitting radiation which travels through a first window (3a) of a sample chamber (2), an absorption length (L1) and further a second window (3b) of the sample chamber (2), the sample chamber being provided, if necessary, with flow connections for a gas mixture; at least one detector (9), which is optically directed towards the second window; at least one optical filter (8), which is permeable to a certain wavelength band, or a radiation dispersion device between the radiation source and the detector. Between the first sample chamber window and the radiation source, the feature comprises a length (L2) and/or, between the second window and the detector, a length (L3), totalling at least about 20 % of the absorption length. The length (L2) between an inner surface (13a) of the first sample chamber window and the radiation source and/or the length (L3) between an inner surface (13b) of the second window and the detector or, respectively, detectors are constituted over substantially all other sections of the radiation path, except those in alignment with possible accessories, by a solid material (7) transmissive to the applied radiation wavelengths. This material is preferably homogeneous at least in the direction transverse to a main radiating direction (R).
EP97660089A 1996-08-30 1997-08-21 Detector arrangement for a spectroscopic analyser Expired - Lifetime EP0826956B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI963388 1996-08-30
FI963388A FI963388A (en) 1996-08-30 1996-08-30 Additional structure of a measuring sensor for spectroscopic analysis of media

Publications (3)

Publication Number Publication Date
EP0826956A2 EP0826956A2 (en) 1998-03-04
EP0826956A3 true EP0826956A3 (en) 1998-11-11
EP0826956B1 EP0826956B1 (en) 2005-07-27

Family

ID=8546562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97660089A Expired - Lifetime EP0826956B1 (en) 1996-08-30 1997-08-21 Detector arrangement for a spectroscopic analyser

Country Status (4)

Country Link
US (1) US6046814A (en)
EP (1) EP0826956B1 (en)
DE (1) DE69733794T2 (en)
FI (1) FI963388A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2378242B (en) * 2001-06-26 2005-08-03 Univ Hull Depth and concentration estimation
DE60121439T2 (en) 2001-08-30 2007-01-11 Instrumentarium Corp. Geometric beam splitter and sensor with a multi-element detector
US6700713B2 (en) * 2002-08-01 2004-03-02 Jenmar Visual Systems Lens optimization for image projection systems
GB2396405B (en) * 2002-12-05 2006-03-08 E2V Tech Uk Ltd Gas sensors
NO322957B1 (en) * 2005-05-31 2006-12-18 Norsk Elektro Optikk As Apparatus and method for reducing interference signals from atmospheric gases by optical measurement of gas in sealed processes and containers.
US20090155921A1 (en) * 2007-12-12 2009-06-18 Arbor Vita Corporation Method and apparatus for reading test strips
IT1399109B1 (en) * 2010-03-31 2013-04-05 Bonfiglioli Engineering S R L Ora Bonfiglioli Engineering S P A METHOD OF ANALYSIS OF A GASEOUS COMPONENT PRESENT IN A HERMETICALLY SEALED CONTAINER
WO2012016159A2 (en) * 2010-07-30 2012-02-02 Buglab Llc Optical sensor for rapid determination of particulate concentration
DE102010055182B4 (en) * 2010-12-20 2016-08-11 Binder Gmbh Measuring system for measuring the CO2 concentration in a climate chamber or an incubator
EP4009032A1 (en) * 2014-04-21 2022-06-08 Aber Instruments, Inc. Particle sensor with interferent discrimination
DE102015221789A1 (en) * 2015-11-06 2017-05-11 Robert Bosch Gmbh Absorption spectroscopic sensor arrangement and method for determining a substance concentration in a gaseous medium
US11313798B2 (en) * 2017-07-04 2022-04-26 Kyushu University, National University Corporation Optical measuring device, light guide member, and optical measuring method
JP6924439B2 (en) * 2017-07-04 2021-08-25 国立大学法人九州大学 Light measuring device, light guide member and light measuring method
CN109925979A (en) * 2019-04-24 2019-06-25 四川轻化工大学 Tubular gas-liquid interface reactor, tubular chemiluminescence detection device and detection method
WO2022126137A1 (en) * 2020-12-12 2022-06-16 Blue Sky Measurements, Inc. Methane monitoring and detection apparatus and methods
GB2616822A (en) * 2021-12-21 2023-09-27 Rolls Royce Plc Determination of fuel characteristics
US11708769B2 (en) 2021-12-21 2023-07-25 Rolls-Royce Plc Exhaust content
US11708796B2 (en) 2021-12-21 2023-07-25 Rolls-Royce Plc Performance parameters
CN114823254B (en) * 2022-04-22 2023-05-23 电子科技大学 Ultra-wideband ultra-surface output window for rotary traveling wave tube

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243776A1 (en) * 1982-11-26 1984-05-30 Honeywell and Philips Medical Electronics B.V., 5611 Eindhoven Device for the determination of constituents in respired gases
FR2592165A1 (en) * 1985-12-23 1987-06-26 Philips Eclairage DEVICE FOR REGULATING THE WEALTH OF COMBUSTION GASES OF AN EXPLOSION ENGINE.
EP0670486A1 (en) * 1994-03-02 1995-09-06 Instrumentarium Oy Spectroscopic measuring sensor for the analysis of mediums

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599176A (en) * 1968-01-02 1971-08-10 Ibm Microprogrammed data processing system utilizing improved storage addressing means
US3745349A (en) * 1971-11-18 1973-07-10 M Liston Single path,dual source radiant energy analyzer
DE2952464C2 (en) * 1979-12-27 1986-03-27 Siemens AG, 1000 Berlin und 8000 München Non-dispersive infrared gas analyzer
DE3334264A1 (en) * 1982-09-25 1984-04-05 Showa Denko K.K., Tokyo METHOD AND MEASURING DEVICE FOR MEASURING METHANE CONCENTRATION IN A GAS MIXTURE
US4893934A (en) * 1988-01-25 1990-01-16 The United States Of America As Represented By The United States Department Of Energy Aethalometer
GB2249389A (en) * 1990-11-02 1992-05-06 Kodak Ltd Densitometers
DE4116431A1 (en) * 1991-05-18 1992-11-19 Standard Elektrik Lorenz Ag Optical measuring unit with optical receiver and first measuring cell - has light wave conductor with which optical transmitter and optical receiver form transmitting and receiving system for transmitting bidirectional signals
US5319200A (en) * 1991-06-05 1994-06-07 Zeltex, Inc. Rapid near-infrared measurement of nonhomogeneous samples
IL99367A (en) * 1991-09-02 1995-12-31 Israel Atomic Energy Comm System for performing ir transmission spectroscopy
GB2276003B (en) * 1993-03-09 1997-01-08 Spectra Tech Inc Method and apparatus for enhancing the usefulness of infrared transmitting materials
JPH06289229A (en) * 1993-04-01 1994-10-18 Bridgestone Corp Light transmission hose

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243776A1 (en) * 1982-11-26 1984-05-30 Honeywell and Philips Medical Electronics B.V., 5611 Eindhoven Device for the determination of constituents in respired gases
FR2592165A1 (en) * 1985-12-23 1987-06-26 Philips Eclairage DEVICE FOR REGULATING THE WEALTH OF COMBUSTION GASES OF AN EXPLOSION ENGINE.
EP0670486A1 (en) * 1994-03-02 1995-09-06 Instrumentarium Oy Spectroscopic measuring sensor for the analysis of mediums
FI95322B (en) * 1994-03-02 1995-09-29 Instrumentarium Oy Spectroscopic measuring sensor for the analysis of media

Also Published As

Publication number Publication date
DE69733794D1 (en) 2005-09-01
FI963388A0 (en) 1996-08-30
US6046814A (en) 2000-04-04
DE69733794T2 (en) 2006-05-24
EP0826956B1 (en) 2005-07-27
FI963388A (en) 1998-03-01
EP0826956A2 (en) 1998-03-04

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